Results 11 to 20 of about 229,690 (293)

Biosignal Amplifiers Based on Low‐Noise Organic Transistors with Printed Electrodes

open access: yesAdvanced Electronic Materials, 2023
The monitoring of microvolt‐level biosignals such as electroencephalograms requires the application of low‐noise signal amplifier circuits, which, for single‐use cases, must be fabricated for disposability using low‐cost manufacturing techniques.
Tomoharu Kimura   +5 more
doaj   +1 more source

Yb-Doped All-Fiber Amplifier with Low-Intensity Noise in mHz Range Oriented to Space-Borne Gravitational Wave Detection

open access: yesApplied Sciences, 2023
We present a low-intensity noise single-frequency Yb-doped all-fiber amplifier oriented to space-borne gravitational wave detection. Relative intensity noise (RIN) below −70 dBc/Hz @ 1 mHz~1 Hz was achieved by virtue of feedback-loop-based intensity ...
Zaiyuan Wang   +5 more
doaj   +1 more source

UWB-MMIC Matrix Distributed Low Noise Amplifier

open access: yesProceedings, 2020
In this paper, a 3.1–11 GHz ultra-wideband low noise amplifier with low noise figure, high power gain S21, low reverse gain S12, and high linearity using the OMMIC ED02AH process, which employs a 0.18 μm Pseudomorphic High Electron Mobility Transistor is
Moustapha El Bakkali   +4 more
doaj   +1 more source

Design of BDS-3 RDSS low noise amplifier based on millimeter wave tube

open access: yesDianzi Jishu Yingyong, 2020
The existing Beidou signal receiver has a low-noise amplifier scheme in the S-band, and the noise figure is between 1.5 dB~1.7 dB under the condition of meeting the gain requirements and the noise performance can be further optimized.
Huang Shijin, Lai Songlin, Wang Yunan
doaj   +1 more source

Design of CMOS-Based Unit Channel of Beamforming Transceivers for FACS Applications

open access: yesIEEE Access, 2023
In this study, we designed the unit channel of beamforming transceivers for flexible access common spectrum (FACS) applications. The designed unit channel consisted of power amplifier, low noise amplifier, gain amplifier, attenuator, phase shifter, and ...
Seongjin Jang   +5 more
doaj   +1 more source

A 5.43 nV/√Hz Chopper Operational Amplifier Using Lateral PNP Input Stage with BJT Current Mirror Base Current Cancellation

open access: yesApplied Sciences, 2020
This paper presents a low-noise chopper operational amplifier using a lateral PNP input stage with bipolar junction transistor (BJT) current mirror base current cancellation.
Hyungseup Kim   +8 more
doaj   +1 more source

Study on the Technology of Ultra-high Sensitive Wide-band Magnetic-feedback Inductive Magnetic Sensor [PDF]

open access: yesMATEC Web of Conferences, 2020
It analyses the composition and principle of high-sensitive wide-band magnetic-feedback inductive magnetic sensor to fulfil the demand of high-sensitive wide-band magnetic sensor in geological exploration.
Liu Yong   +6 more
doaj   +1 more source

FET input voltage amplifier for low frequency noise measurements

open access: yesMetrology and Measurement Systems, 2020
The paper presents a low noise voltage FET amplifier for low frequency noise measurements. It was built using two stages of an op amp transimpedance amplifier.
Krzysztof Achtenberg   +2 more
doaj   +1 more source

Аdaptive broadband low-noise RF amplifier

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2020
Adaptive broadband low-noise radio frequency amplifiers (ABLNRFA) are widely used in the construction of systems for protecting radio receiving paths from nonlinear damage in a non-stationary electromagnetic environment (EME).
I. Yu. Malevich, P. V. Zayats
doaj   +1 more source

Designing a Low-Power LNA and Filter for Portable EEG Acquisition Applications

open access: yesIEEE Access, 2021
A circuit with a low-power low-noise amplifier and a Gm-C ultra-low-power filter is proposed in this paper for portable electroencephalogram (EEG) acquisition applications.
Marzieh Moradi   +2 more
doaj   +1 more source

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